CVE-2025-21870
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2025-03-27
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc4-topology: Harden loops for looking up ALH copiers Other, non DAI copier widgets could have the same stream name (sname) as the ALH copier and in that case the copier->data is NULL, no alh_data is attached, which could lead to NULL pointer dereference. We could check for this NULL pointer in sof_ipc4_prepare_copier_module() and avoid the crash, but a similar loop in sof_ipc4_widget_setup_comp_dai() will miscalculate the ALH device count, causing broken audio. The correct fix is to harden the matching logic by making sure that the 1. widget is a DAI widget - so dai = w->private is valid 2. the dai (and thus the copier) is ALH copier
Weakness Classification (1)
Affected Software (10)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | a150345aa758492e05d2934f318ce7c2566b1cfe < ec8f5a4fe296c311d4b45db7a25a0e9e69802372 |
| Linux | Linux | a150345aa758492e05d2934f318ce7c2566b1cfe < 6b6b47c1aa717a0ed3400e00a81dfea686a41d7f |
| Linux | Linux | a150345aa758492e05d2934f318ce7c2566b1cfe < 87c8768a96092ce75cd47fe076db5080db7ac515 |
| Linux | Linux | a150345aa758492e05d2934f318ce7c2566b1cfe < 93c6c2e5801aab09ef1ef99f248f3cd323c3f152 |
| Linux | Linux | a150345aa758492e05d2934f318ce7c2566b1cfe < 6fd60136d256b3b948333ebdb3835f41a95ab7ef |
| Linux | Linux | 6.0 |
| linux | linux_kernel | 6.0 – 6.12.17 |
| linux | linux_kernel | 6.14 |
| linux | linux_kernel | 6.14 |
| linux | linux_kernel | 6.14 |